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Digital twins are taking a central role in the industry 4.0 narrative. However, they are still illusive. Many aspects of the digital-twins have yet to materialize. For example, to what degree will they be integrated into cloud and industry 4.0 systems as well as how and if they should augment their physical counterpart. Those choices are accompanied by challenging security aspects, many of which h

In this paper, we investigate the security of SNOW-V, demonstrating two guess-and-determine (GnD) attacks against the full version with complexities 2384 and 2378, respectively, and one distinguishing attack against a reduced variant with complexity 2303 . Our GnD attacks use enumeration with recursion to explore valid guessing paths, and try to truncate as many invalid guessing paths as possible

Millimeter-wave cellular communication requires beamforming procedures that enable alignment of the transmitter and receiver beams as the user equipment (UE) moves. For efficient beam tracking it is advantageous to classify users according to their traffic and mobility patterns. Research to date has demonstrated efficient ways of machine learning based UE classification. Although different machine

The learning with errors (LWE) problem is one of the main mathematical foundations of post-quantum cryptography. One of the main groups of algorithms for solving LWE is the Blum–Kalai–Wasserman (BKW) algorithm. This paper presents new improvements of BKW-style algorithms for solving LWE instances. We target minimum concrete complexity, and we introduce a new reduction step where we partially reduc

In this paper we consider a collection of relative pose problems which arise naturally in applications for visual indoor navigation using unmanned aerial vehicles (UAVs). We focus on cases where additional information from an onboard IMU is available and thus provides a partial extrinsic calibration through the gravitational vector. The solvers are designed for a partially calibrated camera, for a

In this paper, we present a side-channel attack on a first-order masked implementation of IND-CCA secure Saber KEM. We show how to recover both the session key and the long-term secret key from 24 traces using a deep neural network created at the profiling stage. The proposed message recovery approach learns a higher-order model directly, without explicitly extracting random masks at each executio

Syftet med denna uppsats är att granska det rättsliga skyddet för visselblåsare i Sverige. Syftet är även att utreda om eventuella problem som finns med detta skydd löses genom de lagförslag som finns i de offentliga utredningarna SOU 2013:79 och SOU 2014:31. Det finns inte någon lagstiftning i Sverige som specifikt inriktar sig på skydd för visselblåsare. Det rättsliga skyddet är komplext och berThe purpose of this paper is to examine the legal protection of whistleblowers in Sweden. The purpose is also to examine if any problems with this legal protection are solved by the bills in two Government Official Reports – SOU 2013:79 and SOU 2014:31. There is no specific regulation in Swedish law for the protection of whistleblowers. The legal protection is complex and different rules from diff

Surface water pollution consists of various pollutants like heavy metals (Cu, Cr, Pb, and Ni), metalloids (Se, As, and Ag), and organic pollutants (dyes, antibiotics, pharmaceuticals, pesticides, and phenolic compounds). The escalating issue of water pollution requires innovative solutions for mitigation and climate resilience. Although various advanced techniques are being developed for removing

The Yaw Power Backup System (YPBS) is a safety system that needs to be incorporated in the Wind Power Plant (WPP) in order to provide emergency power during a power outage. The YPBS enables the Wind Turbine Generator (WTG) to perform a yawing operation in extreme weather conditions. The yawing operation ensures the rotor is aligned with incoming wind, minimizing the acting forces on the blades and

År 2020 anger 212 av 286 kommuner i Sverige att de har ett underskott på bostäder i kommunen som helhet. Sveriges befolkning ökar och bostadsbeståndet hänger inte med. I studien syftar bostadsbristen till definitionen som är skillnaden mellan vad som kollektivt uppfattas som en godtagbar bostadssituation och det faktiska läget på marknaden. Situationer som inte kollektivt anses vara godtagbara bosThe housing responsibility in Sweden is primarily controlled by the municipalities. The municipalities in Sweden have a monopoly on controlling land use with detailed development plans. The population rises every day and the majority of the Swedish municipalities confirms having lack of housing. This study has been made in order to investigate how five municipalities work with their housing respon

In object-oriented programs, the relationship of an object to many objects is usually implemented using indirection through a collection. This is in contrast to a relationship to one object, which is usually implemented directly. However, using collections for relationships to many objects does not only mean that accessing the related objects always requires accessing the collection first, it also

Algorithms for solving systems of polynomial equations are key components for solving geometry problems in computer vision. Fast and stable polynomial solvers are essential for numerous applications e.g. minimal problems or finding for all stationary points of certain algebraic errors. Recently, full symmetry in the polynomial systems has been utilized to simplify and speed up state-of-the-art pol

The semantic formalism reference attribute grammars (RAGs) allows graphs to be superimposed on abstract syntax trees. This paper investigates how RAGs can be used to model visual languages, with a case study of a control language that also has a textual syntax. The language contains blocks on which a total execution order is defined based on connections and layout information. One strength of RAGs

Titel: Kategorihantering; ett verktyg för att skapa framtidens ekologiska frukt- och grönthylla? Institution: Institutionen för Service Management, Campus Helsingborg, Lunds Universitet Nivå: Magisteruppsats VT 2009. 15 poäng Författare: Martin Lundqvist, Calin Roman och Marcus Stridhammar Handledare: Mikael Bergmasth och Birgitta Olsson Syfte och bidrag: Vårt syfte med studien är följande; att un

Anecdotal evidence suggests that task-shifting or the redistribution of responsibilities from fully-trained surgeons to clinicians with fewer qualifications could become a major component of surgical care delivery in many low-income and middle-income countries (LMICs). Our goal was to summarise the scope of surgical task-shifting in LMICs through a systematic review of the medical literature.

In this paper, robust detection, tracking and geometry estimation methods are developed and combined into a system for estimating time-difference estimates, microphone localization and sound source movement. No assumptions on the 3D locations of the microphones and sound sources are made. The system is capable of tracking continuously moving sound sources in an reverberant environment. The multi-p